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Mariposa planners continue overhaul of zoning code; commissioners flag setbacks, housing and watershed rules for revision
Summary
The Planning Commission continued its review of development code Articles 2, 3 and 9, addressing ADU setbacks, employee/workforce housing, RV/resort-commercial uses, open‑watershed parcel-size limits, and surface mining/reclamation language; staff will return with revised text and follow-up meetings with Ag and resource agencies.
The Mariposa County Planning Commission resumed a months‑long review of proposed development code updates, focusing on Articles 2, 3 and 9 that would reorganize zoning provisions, update allowable uses to align with state law and consolidate regulatory overlays.
Planning Director Steve Eng summarized the reorganization into nine parts (zones, allowable uses, development standards, land‑use regulations, subdivision rules, nonconforming use provisions, permit procedures, administration and definitions) and emphasized the update is textual rather than a rezoning of parcels. Staff presented several substantive changes: consolidating allowed land‑use tables, aligning accessory dwelling unit (ADU) setbacks with state ADU law (including a 4‑foot side/rear setback for ADUs), incorporating new state definitions for employee and farmworker housing, and centralizing overlay zone rules (including the airport overlay).
Commissioners raised numerous line‑by‑line concerns. They asked staff to verify whether certain uses should remain conditional versus permitted (for instance, commercial stables, agritourism activities and RV parks), discussed parcel‑size thresholds for permitted agricultural and workforce housing provisions, and debated whether front setbacks for primary residences should remain larger (25–35 feet) even if ADU side setbacks are reduced to four feet. Several commissioners asked that tables include footnotes referencing building and fire code requirements to avoid conflicts between zoning setbacks and other regulatory setbacks.
The open-watershed overlay generated particular debate. Current code restricts development to 20‑acre minimum parcels; commissioners suggested allowing smaller parcels in the overlay where applicants can demonstrate modern stormwater and advanced septic/secondary‑treatment technologies will mitigate sediment and pollutant risks. Staff agreed to draft alternative language and consult the appropriate water/resource stakeholders (MPD and Environmental Health) before returning a revised draft.
A caller, Supervisor Poe, raised concerns about proposed surface‑mining and reclamation language that broadly referenced permits, reclamation plans and financial assurances. Staff and commissioners acknowledged the county cannot supersede federal jurisdiction over mining on federal lands and agreed to review existing MOUs/resolutions with BLM/Forest Service and clarify where county authority applies, how vested rights will be handled, and whether the code should exclude federal lands or defer to federal lead‑agency processes.
Commissioners also discussed workforce housing: whether to permit small employee housing by right or require a discretionary review to control scale and clustering, and how to incentivize workforce housing associated with resort‑commercial development without allowing commercial parcels to be converted to pure residential uses that would foreclose future commercial opportunities.
Staff and commissioners set a follow‑up schedule: continue code discussions at meetings in early April with the aim of advancing Title 17 revisions and returning to Article 4 and remaining sections thereafter. Staff will coordinate a joint meeting with the Agriculture Advisory Committee in June or July to reconcile agritourism and ag‑related uses. Several commissioners emphasized the update is a high priority and asked staff to return with revised language on setbacks, watershed exceptions, mining/reclamation jurisdiction and employee‑housing definitions.
No formal votes were taken on the code text at this meeting; commissioners flagged numerous edits and asked staff to bring updated drafts for public review and further deliberation.
